I915_OVERLAY_SWAP_MASK 1386 include/uapi/drm/i915_drm.h #define I915_OVERLAY_SWAP_MASK 0xff0000 I915_OVERLAY_SWAP_MASK 1386 tools/include/uapi/drm/i915_drm.h #define I915_OVERLAY_SWAP_MASK 0xff0000